<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - remove appending linkage"
href="https://bugs.llvm.org/show_bug.cgi?id=33649">33649</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>remove appending linkage
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Core LLVM classes
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>rafael.espindola@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, tejohnson@google.com
</td>
</tr></table>
<p>
<div>
<pre>The odd ways we have to handle appending linkage surfaced again in how
@llvm.global_ctors is handled.
I think we can make llvm linking simpler by removing the appending linkage.
Things like
@llvm.global_ctors = ... { i32 A1, i32 B1, i8* C1 }, { i32 A2, i32 B2, i8* C2
}
can be represented as
@ctor1 = private ... { i32 A1, i32 B1 }, section
"llvm.metadata.ctors", comdat $(comdat of C1).
@ctor2 = private ... { i32 A2, i32 B2 }, section
"llvm.metadata.ctors", comdat $(comdat of C2).
Which has a few advantages:
* It links just like every other IR.
* It representation matches what is actually done in the object file.
Currently the representation has different meaning if C is not in a
comdat.
Note that this still abstracts away the actual sections used by COFF/ELF/MachO.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>